RE: [PATCH net-next v2 0/2] ptp: add control over HW timestamp latch point

[Kubalewski, Arkadiusz]

>From: Vadim Fedorenko <vadim.fedorenko@xxxxxxxxx>
>Sent: Tuesday, October 29, 2024 12:30 PM
>
>On 28/10/2024 20:47, Arkadiusz Kubalewski wrote:
>> HW support of PTP/timesync solutions in network PHY chips can be
>> achieved with two different approaches, the timestamp maybe latched
>> either in the beginning or after the Start of Frame Delimiter (SFD) [1].
>>
>> Allow ptp device drivers to provide user with control over the timestamp
>> latch point.
>>
>> [1] https://www.ieee802.org/3/cx/public/april20/tse_3cx_01_0420.pdf
>
>I just wonder should we add ethtool interface to control this feature.
>As we are adding it for phy devices, it's good idea to have a way to
>control it through eth device too. WDYT?

Seems doable, I guess somehow expand the controllability being added right
now with this series:
https://lore.kernel.org/netdev/20241023-feature_ptp_netnext-v18-0-ed948f3b6887@xxxxxxxxxxx/#r
Or some other idea?